Optical device with low-resistive multi-level reflecting structu

Details Optical device with low-resistive multi-level reflecting structu Optical device with low-resistive multi-level reflecting structu

1992-01-07

1993-05-04

Epps, Georgia Y.

Coherent light generators

Particular active media

Semiconductor

372 96, H01S 319

Patent

active

052088200

ABSTRACT:
An optical device has a multi-layer reflecting structure provided in association with an active layer for allowing light to oscillate, and the multi-layer reflecting structure is implemented by a plurality of units each having a high refractive film, a low refractive film and a layer for improving conductivity of the multi-layer reflecting structure, wherein the layer is implemented by a heavily doped impurity region with an impurity profile tracing plots of a delta function or by a quasi-graded super-lattice film microscopically graded in composition between the high and low refractive films.

REFERENCES:
patent: 5018157 (1991-05-01), Deppe et al.
patent: 5136345 (1992-08-01), Kasahara
Submilliamp Threshold Vertical-Cavity Laser Diodes, Applied Physics Letters, Oct. 1990 vol. 57, pp. 1605-1607, by R. S. Geels and L. A. Coldren.

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